12716656 has 20 divisors (see below), whose sum is σ = 24700552. Its totient is φ = 6342336.

The previous prime is 12716653. The next prime is 12716657. The reversal of 12716656 is 65661721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12716651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8026 + ... + 9478.

Almost surely, 2^12716656 is an apocalyptic number.

12716656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12716656 is a deficient number, since it is larger than the sum of its proper divisors (11983896).

12716656 is a wasteful number, since it uses less digits than its factorization.

12716656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008 (or 2002 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 12716656 is about 3566.0420636891. The cubic root of 12716656 is about 233.4126061713.

The spelling of 12716656 in words is "twelve million, seven hundred sixteen thousand, six hundred fifty-six".